Merge branches 'topic/fix/misc' and 'topic/fix/hda' into for-linus
[linux-2.6] / drivers / media / video / sn9c102 / sn9c102_tas5110c1b.c
1 /***************************************************************************
2  * Plug-in for TAS5110C1B image sensor connected to the SN9C1xx PC Camera  *
3  * Controllers                                                             *
4  *                                                                         *
5  * Copyright (C) 2004-2007 by Luca Risolia <luca.risolia@studio.unibo.it>  *
6  *                                                                         *
7  * This program is free software; you can redistribute it and/or modify    *
8  * it under the terms of the GNU General Public License as published by    *
9  * the Free Software Foundation; either version 2 of the License, or       *
10  * (at your option) any later version.                                     *
11  *                                                                         *
12  * This program is distributed in the hope that it will be useful,         *
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of          *
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           *
15  * GNU General Public License for more details.                            *
16  *                                                                         *
17  * You should have received a copy of the GNU General Public License       *
18  * along with this program; if not, write to the Free Software             *
19  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.               *
20  ***************************************************************************/
21
22 #include "sn9c102_sensor.h"
23 #include "sn9c102_devtable.h"
24
25
26 static int tas5110c1b_init(struct sn9c102_device* cam)
27 {
28         int err = 0;
29
30         err = sn9c102_write_const_regs(cam, {0x01, 0x01}, {0x44, 0x01},
31                                        {0x00, 0x10}, {0x00, 0x11},
32                                        {0x0a, 0x14}, {0x60, 0x17},
33                                        {0x06, 0x18}, {0xfb, 0x19});
34
35         err += sn9c102_i2c_write(cam, 0xc0, 0x80);
36
37         return err;
38 }
39
40
41 static int tas5110c1b_set_ctrl(struct sn9c102_device* cam,
42                                const struct v4l2_control* ctrl)
43 {
44         int err = 0;
45
46         switch (ctrl->id) {
47         case V4L2_CID_GAIN:
48                 err += sn9c102_i2c_write(cam, 0x20, 0xf6 - ctrl->value);
49                 break;
50         default:
51                 return -EINVAL;
52         }
53
54         return err ? -EIO : 0;
55 }
56
57
58 static int tas5110c1b_set_crop(struct sn9c102_device* cam,
59                                const struct v4l2_rect* rect)
60 {
61         struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
62         int err = 0;
63         u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 69,
64            v_start = (u8)(rect->top - s->cropcap.bounds.top) + 9;
65
66         err += sn9c102_write_reg(cam, h_start, 0x12);
67         err += sn9c102_write_reg(cam, v_start, 0x13);
68
69         /* Don't change ! */
70         err += sn9c102_write_reg(cam, 0x14, 0x1a);
71         err += sn9c102_write_reg(cam, 0x0a, 0x1b);
72         err += sn9c102_write_reg(cam, sn9c102_pread_reg(cam, 0x19), 0x19);
73
74         return err;
75 }
76
77
78 static int tas5110c1b_set_pix_format(struct sn9c102_device* cam,
79                                      const struct v4l2_pix_format* pix)
80 {
81         int err = 0;
82
83         if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
84                 err += sn9c102_write_reg(cam, 0x2b, 0x19);
85         else
86                 err += sn9c102_write_reg(cam, 0xfb, 0x19);
87
88         return err;
89 }
90
91
92 static const struct sn9c102_sensor tas5110c1b = {
93         .name = "TAS5110C1B",
94         .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
95         .supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102,
96         .sysfs_ops = SN9C102_I2C_WRITE,
97         .frequency = SN9C102_I2C_100KHZ,
98         .interface = SN9C102_I2C_3WIRES,
99         .init = &tas5110c1b_init,
100         .qctrl = {
101                 {
102                         .id = V4L2_CID_GAIN,
103                         .type = V4L2_CTRL_TYPE_INTEGER,
104                         .name = "global gain",
105                         .minimum = 0x00,
106                         .maximum = 0xf6,
107                         .step = 0x01,
108                         .default_value = 0x40,
109                         .flags = 0,
110                 },
111         },
112         .set_ctrl = &tas5110c1b_set_ctrl,
113         .cropcap = {
114                 .bounds = {
115                         .left = 0,
116                         .top = 0,
117                         .width = 352,
118                         .height = 288,
119                 },
120                 .defrect = {
121                         .left = 0,
122                         .top = 0,
123                         .width = 352,
124                         .height = 288,
125                 },
126         },
127         .set_crop = &tas5110c1b_set_crop,
128         .pix_format = {
129                 .width = 352,
130                 .height = 288,
131                 .pixelformat = V4L2_PIX_FMT_SBGGR8,
132                 .priv = 8,
133         },
134         .set_pix_format = &tas5110c1b_set_pix_format
135 };
136
137
138 int sn9c102_probe_tas5110c1b(struct sn9c102_device* cam)
139 {
140         const struct usb_device_id tas5110c1b_id_table[] = {
141                 { USB_DEVICE(0x0c45, 0x6001), },
142                 { USB_DEVICE(0x0c45, 0x6005), },
143                 { USB_DEVICE(0x0c45, 0x60ab), },
144                 { }
145         };
146
147         /* Sensor detection is based on USB pid/vid */
148         if (!sn9c102_match_id(cam, tas5110c1b_id_table))
149                 return -ENODEV;
150
151         sn9c102_attach_sensor(cam, &tas5110c1b);
152
153         return 0;
154 }